28237396 has 24 divisors (see below), whose sum is σ = 54069120. Its totient is φ = 12796800.

The previous prime is 28237381. The next prime is 28237403. The reversal of 28237396 is 69373282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18220 + ... + 19708.

It is an arithmetic number, because the mean of its divisors is an integer number (2252880).

Almost surely, 2^28237396 is an apocalyptic number.

It is an amenable number.

28237396 is a deficient number, since it is larger than the sum of its proper divisors (25831724).

28237396 is a wasteful number, since it uses less digits than its factorization.

28237396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935 (or 1933 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 28237396 is about 5313.8870895043. The cubic root of 28237396 is about 304.5146666217.

The spelling of 28237396 in words is "twenty-eight million, two hundred thirty-seven thousand, three hundred ninety-six".